<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-06-03 -154 00:20:00.000"
URSICode="SMK29"
StationName="Santa Maria"
GeoLatitude="-29.69"
GeoLongitude="307.81"
Source="Ionosonde"
SourceType="DPS-4D"
ScalerType="auto">
<SystemInfo UMLStationID="129">
<FrequencyStepping StartFrequency="2.0" StopFrequency="15.0">
<LinearStepping Step="0.025" Units="MHz" />
</FrequencyStepping>
<RangeStepping StartRange="80.0" StopRange="1360.0" >
<LinearStepping Step="2.5" Units="km" />
</RangeStepping>
<AutoScaler Name="Artist5" Version="500200" ArtistFlags="2 2 0 0 0 0 0 0 0 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 60% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.06.03 (154) 00:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.23" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.00" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="73.46457" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202615406030020001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.975" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.827" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.212" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="215.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="215.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="90" Val="110.000" Name="hmE" Units="km" QL="/" DL="/" />
<URSI ID="83" Val="20.000" Name="yE" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.825" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="257.644" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="227.482" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="209.326" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.770" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.971" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.151" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.942" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.970" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.850" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="39">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25 3.275 3.3 3.325 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
215.000 217.500 217.500 217.500 217.500 220.000 220.000 220.000 222.500 222.500 222.500 225.000 225.000 227.500 227.500 227.500 230.000 230.000 232.500 232.500 235.000 235.000 237.500 237.500 237.500 242.500 242.500 245.000 246.819 248.912 251.348 254.216 257.644 261.814 266.995 273.606 282.334 294.390 312.124
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 84 84 84 96 96 99 99 96 99 99 96 99 90 84 87 87 90 87 87 90 93 90 87 78 78 84 87 90 84 63 60 84 87 87 87 93 96 78
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="356">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 134.5 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.5 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 227.482 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21213934 0.23390245 0.2526677 0.26895854 0.28319094 0.29565945 0.30659118 0.31614733 0.32445762 0.331616 0.33769703 0.34275886 0.34684667 0.3499937 0.352225 0.3535571 0.354 0.353812 0.35317364 0.35223874 0.35086352 0.34905878 0.3468389 0.3442219 0.3411586 0.33767787 0.33367795 0.32927206 0.3243802 0.3189446 0.3129916 0.30645373 0.29930657 0.29149976 0.28296635 0.27368933 0.26350668 0.2523124 0.24007721 0.22657463 0.21160045 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.20628572 0.21257143 0.21885714 0.22514285 0.23142858 0.23771429 0.244 0.2502857 0.25657144 0.26285714 0.26914287 0.27542856 0.2817143 0.288 0.2942857 0.30057144 0.30685714 0.31314287 0.31942856 0.3257143 0.332 0.3382857 0.34457144 0.35085714 0.354 0.37259233 0.41409343 0.4609439 0.51244617 0.5678826 0.6267596 0.6888085 0.75401986 0.8224957 0.89450645 0.97038364 1.0505239 1.1353986 1.2255228 1.3213974 1.4235759 1.532526 1.6486568 1.7721161 1.9027711 2.0400321 2.1826687 2.3289576 2.4765427 2.6228764 2.7654626 2.9021852 3.0314088 3.1521223 3.2637587 3.3661427 3.459363 3.5436764 3.619403 3.686902 3.7465475 3.7986758 3.8435962 3.8815882 3.9128776 3.9376597 3.9560838 3.9682689 3.974289 3.975 3.9744682 3.9705033 3.96282 3.9516027 3.9370363 3.9193058 3.8985944 3.875084 3.8489525 3.820376 3.789525 3.7565665 3.7216623 3.684969 3.6466374 3.6068137 3.5656369 3.5232413 3.479755 3.4352999 3.389992 3.343942 3.2972543 3.2500281 3.2023568 3.154328 3.1060255 3.0575264 3.0089037 2.9602258 2.911556 2.862954 2.8144746 2.7661688 2.7180843 2.6702645 2.6227496 2.5755765 2.528779 2.4823883 2.4364321 2.3909357 2.3459225 2.3014128 2.257425 2.2139757 2.171079 2.1287475 2.086992 2.0458221 2.0052457 1.9652686 1.9258964 1.8871329 1.8489809 1.8114421 1.7745174 1.7382067 1.7025092 1.6674232 1.6329464 1.5990759 1.565808 1.5331389 1.5010638 1.4695779 1.4386759 1.4083518 1.3785998 1.3494133 1.320786 1.292711 1.2651812 1.2381895 1.2117286 1.1857908 1.1603688 1.1354549 1.1110414 1.0871204 1.0636842 1.0407249 1.0182347 0.99620575 0.97463024 0.9535003 0.93280816 0.9125461 0.89270645 0.8732815 0.8542637 0.8356456 0.81741965 0.79957855 0.7821149 0.7650217 0.74829155 0.7319176 0.71589285 0.7002105 0.6848637 0.6698458 0.6551503 0.6407707 0.62670064 0.6129338 0.5994641 0.5862854 0.57339185 0.5607774 0.5484365 0.5363633 0.5245524 0.5129982 0.5016954 0.49063876 0.47982305 0.46924323 0.45889428 0.4487714 0.4388697 0.42918456 0.41971132 0.41044548 0.40138263 0.3925184 0.38384852 0.37536886 0.36707532 0.35896388 0.35103062 0.34327167 0.33568332 0.32826185 0.32100362 0.31390515 0.3069629 0.30017358 0.29353377 0.28704023 0.28068984 0.27447942 0.2684059 0.2624664 0.25665787 0.25097752 0.24542251 0.23999012 0.23467766 0.22948249 0.22440206 0.21943384 0.21457538 0.20982426 0.20517814 0.20063469 0.19619167 0.19184685 0.18759811 0.1834433 0.17938037 0.17540729 0.1715221 0.16772284 0.16400762 0.1603746 0.15682197 0.15334794 0.14995079 0.14662883 0.14338037 0.14020383 0.1370976 0.13406011 0.13108988 0.1281854 0.12534523 0.122567944 0.119852155 0.11719649 0.114599645 0.1120603 0.109577194 0.10714907 0.104774736 0.10245298 0.10018265 0.09796261 0.09579174 0.09366896 0.091593206 0.08956343 0.08757862 0.08563778 0.08373993 0.08188413 0.08006945 0.07829497 0.076559804 0.07486308 0.07320396 0.07158159 0.06999517 0.0684439 0.06692701 0.065443724 0.063993305 0.06257503 0.061188176 0.05983206 0.05850599 0.05720931 0.05594136 0.05470151 0.053489134 0.052303627 0.05114439 0.050010845

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.354" PeakHeight="110.0" Num="3" Error="0.0">
-18.791 2.435 -0.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.354" EndFrequency="3.975" PeakHeight="227.482" Num="5" zHalfNm="209.326" Error="1.385">
-46.388 4.382 -3.149 1.648 -0.475
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="16" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0205" EndDistance="6480.001" A="-5.5027394E11" B="1.69837632E8" C="-13104.63" Error="0.0016"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6504.5" A="-2.52482355E11" B="7.7926656E7" C="-6012.734" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6504.5" EndDistance="6529.0" A="0.0" B="1313.9652" C="-0.16199978" Error="0.0187"/>
<QuasiParabolic ID="3" StartDistance="6529.0" EndDistance="6531.0" A="-3.90144092E12" B="1.19473434E9" C="-91465.52" Error="0.0797"/>
<QuasiParabolic ID="4" StartDistance="6531.0" EndDistance="6542.0" A="4.2257213E11" B="-1.29416024E8" C="9908.716" Error="0.0703"/>
<QuasiParabolic ID="5" StartDistance="6542.0" EndDistance="6544.0" A="-1.49442042E12" B="4.56641024E8" C="-34883.17" Error="0.00926"/>
<QuasiParabolic ID="6" StartDistance="6544.0" EndDistance="6545.0" A="3.04968263E12" B="-9.3214355E8" C="71228.125" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6545.0" EndDistance="6546.0" A="-2.90351035E12" B="8.8701402E8" C="-67744.95" Error="0.0"/>
<QuasiParabolic ID="8" StartDistance="6546.0" EndDistance="6547.0" A="3.05171818E12" B="-9.3248755E8" C="71233.164" Error="0.0"/>
<QuasiParabolic ID="9" StartDistance="6547.0" EndDistance="6548.0" A="-2.90527825E12" B="8.872761E8" C="-67743.74" Error="0.0"/>
<QuasiParabolic ID="10" StartDistance="6548.0" EndDistance="6549.0" A="3.05375425E12" B="-9.3283155E8" C="71238.21" Error="0.0"/>
<QuasiParabolic ID="11" StartDistance="6549.0" EndDistance="6550.0" A="-3.47925958E12" B="1.0622864E9" C="-81084.125" Error="0.0"/>
<QuasiParabolic ID="12" StartDistance="6550.0" EndDistance="6554.0" A="3.11400045E12" B="-9.5092269E8" C="72595.95" Error="0.0635"/>
<QuasiParabolic ID="13" StartDistance="6554.0" EndDistance="6567.0" A="1.28717339E13" B="-3.92856499E9" C="299758.2" Error="0.0585"/>
<QuasiParabolic ID="14" StartDistance="6567.0" EndDistance="6580.0" A="4.7449196E13" B="-1.44592374E10" C="1101545.2" Error="0.0196"/>
<QuasiParabolic ID="15" StartDistance="6580.0" EndDistance="6597.482" A="-4.5925762E13" B="1.39222088E10" C="-1055099.5" Error="0.0083"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="73.5" Depth="0.154"/>
<TopsideChapman PeakHeight="227.482" PeakDensity="196037.53" PeakScaleHeight="13.942" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
